Pneumatic cleaning implement.



D. T. WILLIAMS. PNEUMATIC CLEANING IMPLEMENT.

Patented July 27, 1909.

APPLICATION FILED APB. 30,1908.

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UNITED STATES PATENT. OFFICE. DAVID '1. WILLIAMS, oF- rA'rEas 'o EW JnnsEnAss reN'oa'ro mount ENGINEERING COMPANY, OF NEw YORK, N. r e oo PoRA'rIoN or EW YORK.

suction apparatus so that dirt and air, or

dirt, air and" water are drawn from the surface being cleaned through suitable pipes or conduits. This form of my invention relates particularly to means for obtaining athorough and eflicient action of the cleaning implement, especially Where the cleaning implement is made of unusual widths in order to treat a wide area of surface during a single stroke of the implement.

In cleaning implements of the class having a suction head provided with a narrow slot adapted to be-passed over or contact with the surface beingcleaned, it has been found that the suction tends to be created to a greater degree at the central portion of the slot than at its ends, when the length of the slot is reater than a certain dimension and when t e suction conduit connects with the middle of the suction head. To obviate this objectionable feature, I have devised the construction set forth in the following specification and in in which Figure 1 is a side elevation of my improved suction cleaning implement, parts being broken away to show the internal arrangement thereof. 0 Fig. 2 is a vertical-transverse sectional View thereof, and Fig. 3 is a plan-view of a portion of thesame.

Referring to the drawing, the numeral 1 indicates the casin forming the suction head which has attache thereto at a suitableangle, a suction conduit, 2. The suction head, 1, terminates in a narrow slot, 3, which may be designed, as to length and width, to accommodate the requirements of use and the amount of vacuum produced by the suction apparatus. Within the suction head, I p ace transverse vanes or ribs, 4, which. are so located that the suction maintained in the conduit, 2, will be evenly distributed'to all portions of the-slot, 3. The ribs or vanes, 4,

speeiflcationpi Letters Patent. a Application filed April'30, 1908. Serial No. 480,076.

the accompanying drawing,

rnnuim'rro CLEANING IMPLEM N Patented July 27, 1909.

extend from top to bottom of the interior chamber of the suction head, 1, and at their inner ends approach each other only to an extent suflicien'tto restrict the vacuum at thecentral portion of the slot, and allow the same to act more forcibly at the ends of the slot. By proportioning the opening, 5, in relation to the passages 6, between the vanes, 4E, and they upper wallof the chamber in the suction head, the vacuum will be distributed evenly over the entire length of the slot.

In the form of invention shown, I have shown the suction head used in connection with a brush for dislodging the dirt from the surface being cleaned, such as walls, hard wood, tile floors, etc. This bru'sh consists of 1 a back or top, 7, having bristles, 8, inserted therein, and providedwith a flexible apron 9, made of'leather or other flexible material which surroundsthe bristles, in order to more thoroughly collect the dust and dirt dislodged thereby. This brush may be attached to the suction head by means of a flange, 10-, which engages suitable fastening devices.

I do not wishto be understood as being limited to the arrangement of arts and de-v tails of construction herein set orth, for it is obvious that various changes may be made without departing from the spirit and scope of my invention. The ri'nclpal features of my improved suction liead may be used either with a. suction head having a lain o 'ening without a brush, or without a exib e contacting pad or packing, as is sometimes used, the improvement being applicableto all forms of suction heads where a narrow slot is utilized. It will be ap arent also that more than two directive or istributing vanes may be used, depending upon the size,

shape and design of the suction head, the

and said slot and dividing said chamber into separate channels, and a slotted contact separate channels, and a slotted brush on the member on the end of said head. end of said head.

2. A vacuum"'cleaning implement eom- Signed this 28th day of April, 1908. prising a head having an elongated suction chamber therein, said chamber having an DAVID WILLIAMS outlet opening and an inlet slot, vanes 10- Witnesses: cated in said chamber between said outlet WALTER S, JONES,

and said slot and dividing saidehamber into i EDW. W. VANT, Jr. 

